qtype_ddmarker_shape Class Reference

Base class to represent a shape. More...

Inheritance diagram for qtype_ddmarker_shape:

Public Member Functions
	__construct ($coordsstring)
	center_point ()
	Returns the center location of the shape.
	get_coords_interpreter_error ()
	Gets any coordinate error.
	inside_width_height ($widthheight)
	is_point_in_shape ($xy)
	Check if the location is within the shape.

Static Public Member Functions
static	create ($shape, $coordsstring)
	Creates a new shape of the specified type.
static	exists ($shape)
	Checks if the passed shape exists.
static	human_readable_coords_format ()
static	human_readable_name ($lowercase=false)
	Return a human readable name of the shape.
static	name ()
	Returns the name of the shape.
static	shape_options ()

Protected Member Functions
	is_only_numbers ()
	Test if all passed parameters consist of only numbers.
	is_point_in_bounding_box ($pointxy, $xleftytop, $xrightybottom)
	Checks if the point is within the bounding box made by top left and bottom right.
	outlying_coords_to_test ()

Protected Attributes
bool	$error = false
	Indicates if there is an error.

Static Protected Attributes
static string	$classnameprefix = 'qtype_ddmarker_shape_'
	The shape class prefix.

Detailed Description

Base class to represent a shape.

Copyright

2012 The Open University

License

http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Member Function Documentation

center_point()

qtype_ddmarker_shape::center_point ( )

abstract

Returns the center location of the shape.

Return values

array

X and Y location

Reimplemented in qtype_ddmarker_shape_circle, qtype_ddmarker_shape_polygon, and qtype_ddmarker_shape_rectangle.

create()

static qtype_ddmarker_shape::create ( $shape, $coordsstring )

static

Creates a new shape of the specified type.

Parameters

string	$shape	The shape to create
string	$coordsstring	The string describing the coordinates

Return values

object

exists()

static qtype_ddmarker_shape::exists ( $shape )

static

Checks if the passed shape exists.

Parameters

string

$shape

The shape name

Return values

bool

get_coords_interpreter_error()

qtype_ddmarker_shape::get_coords_interpreter_error

(

)

Gets any coordinate error.

Return values

string|bool

String of the error or false if there is no error

human_readable_name()

static qtype_ddmarker_shape::human_readable_name ( $lowercase = false )

static

Return a human readable name of the shape.

Parameters

bool

$lowercase

True if it should be lowercase.

Return values

string

is_only_numbers()

qtype_ddmarker_shape::is_only_numbers ( )

protected

Test if all passed parameters consist of only numbers.

Return values

bool	True if only numbers

is_point_in_bounding_box()

qtype_ddmarker_shape::is_point_in_bounding_box ( $pointxy, $xleftytop, $xrightybottom )

protected

Checks if the point is within the bounding box made by top left and bottom right.

Parameters

array	$pointxy	Array of the point (x, y)
array	$xleftytop	Top left point of bounding box
array	$xrightybottom	Bottom left point of bounding box

Return values

bool

is_point_in_shape()

qtype_ddmarker_shape::is_point_in_shape ( $xy )

abstract

Check if the location is within the shape.

Parameters

array

$xy

$xy[0] is x, $xy[1] is y

Return values

boolean

is point inside shape

Reimplemented in qtype_ddmarker_shape_circle, qtype_ddmarker_shape_polygon, and qtype_ddmarker_shape_rectangle.

name()

static qtype_ddmarker_shape::name ( )

static

Returns the name of the shape.

Return values

string

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The documentation for this class was generated from the following file:

• question/type/ddmarker/shapes.php